Using the C ++ library in C #

Hello! People, tell me, maybe, who faced this.

1. There is a library in C ++ .lib, there is an API to it, in the form of header files.

2. There is an example of using the API in C ++

3. There is a WPF-application on C # in which it is necessary to use this library.

How is this most convenient to do? C ++, unfortunately, I don’t know completely .. :(

1. The main class from the library to work with (header file):

   class ManagerWindows: public Manager { public: static std::shared_ptr<ManagerWindows> getInstance(); }; 

2. Here is an example of calling this class:

    std::shared_ptr<ManagerWindows> manager_; manager_ = ManagerWindows::getInstance(); 

I do not even know which side to approach ...

Tried to write CLR-vrapper:

 //library.h namespace Library { public ref class Wrapper { public: std::shared_ptr<ManagerWindows> getInstance(); }; } //library.cpp std::shared_ptr<ManagerWindows> Library::Wrapper::getInstance() { return ManagerWindows::getInstance(); } 

When trying to use from C # this compilation error:

  Wrapper mw; mw = new Wrapper(); object o = mw.getInstance(); 

Error CS0570 'Wrapper.getInstance (?)' Is not supported by the language